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首页> 外文期刊>Journal of near infrared spectroscopy >Determination of hydrogen peroxide by near infrared spectroscopy
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Determination of hydrogen peroxide by near infrared spectroscopy

机译：近红外光谱法测定过氧化氢

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摘要

Near infrared (NIR) spectroscopy has been employed for the determination of hydrogen peroxide in antiseptic pharmaceutical preparations where it is found in concentrations of about 3.0% (w/v). Standard solutions containing hydrogen peroxide in the range 0-10% (w/v) were prepared and split into two groups, which were used for partial least squares (PLS1) modelling and for initial evaluation of the model performance. Absorbance spectra, in the wavelength range from 850 to 1800 nm, were obtained using a transflectance probe with optical path of 1.0 mm. The first derivative of the absorption spectra were employed for PLS1 modelling, which requires two factors, resulting in a root mean square error of cross-validation of 0.07% obtained by full cross-validation. The model was evaluated by using prepared and commercial samples of pharmaceuticals containing H{sub}2O{sub}2 in the range from 1 to 20% resulting in a root mean standard error of prediction of 0.05%.
机译：近红外（NIR）光谱法已用于测定消毒药物制剂中的过氧化氢，其浓度约为3.0％（w / v）。制备含有0-10％（w / v）范围内过氧化氢的标准溶液，并将其分为两组，用于偏最小二乘（PLS1）建模和模型性能的初始评估。使用具有1.0mm光程的透反射探头获得在850至1800nm波长范围内的吸收光谱。吸收光谱的一阶导数用于PLS1建模，这需要两个因素，导致通过完全交叉验证获得的交叉验证的均方根误差为0.07％。通过使用包含1％至20％范围内的H {sub} 2O {sub} 2的药物的制备样品和商业样品对模型进行评估，得出的预测均方根标准误为0.05％。

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